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Vulnerability record · CVE-2026-71676 · published 18 August 2026

CVE-2026-71676: Heap-based buffer overflow vulnerability

Buffer Overflow vulnerability in Open5GS v.2.7.0 allows a remote attacker to cause a denial of service via the NAS 5GS decoder chain, triggered when the message type byte of a NAS PDU is mutated

7.5 CVSS 3.1 High EPSS 0.55% · top 56.5% CWE-122 · Heap-based buffer overflow Deferred
7.5CVSS 3.1 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
31 Aug 2026Last modified by NVD

Description

Buffer Overflow vulnerability in Open5GS v.2.7.0 allows a remote attacker to cause a denial of service via the NAS 5GS decoder chain, triggered when the message type byte of a NAS PDU is mutated

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://gist.github.com/centauruszzz/0d267967fc5d072f31c866603f7aaf7c
https://gist.github.com/centauruszzz/0d267967fc5d072f31c866603f7aaf7c

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Source: NIST National Vulnerability Database (record CVE-2026-71676), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.